Evaluation of the synchronous generation and sampling technique

Ihlenfeld, W. G. Kurten; Mohns, E.; Bachmair, Hans; Ramm, G.; Moser, Harald

doi:10.1109/tim.2003.811575

Cited by 39 publications

(15 citation statements)

References 1 publication

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“…These sampling voltmeters have a high-resolution integrating ADC (IADC) that operates according to the dual slope principle. The sampling process is such that the sampling instant is not a discrete point in time, but the measured signal is integrated by IADC over the aperture time of AD converter [20][21][22][23][24][25][26][27].…”

Section: Bias Of Phase Difference Measurement Resultsmentioning

confidence: 99%

Evaluation of Uncertainty of Phase Difference Determination in Presence of Bias

Saranovac¹,

Vučijak²

2016

Metrology and Measurement Systems

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Determination of the phase difference between two sinusoidal signals with noise components using samples of these signals is of interest in many measurement systems. The samples of signals are processed by one of many algorithms, such as 7PSF, UQDE and MSAL, to determine the phase difference. The phase difference result must be accompanied with estimation of the measurement uncertainty. The following issues are covered in this paper: the MSAL algorithm background, the ways of treating the bias influence on the phase difference result, comparison of results obtained by applying MSAL and the other mentioned algorithms to the same real signal samples, and evaluation of the uncertainty of the phase difference.

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Section: Bias Of Phase Difference Measurement Resultsmentioning

confidence: 99%

Evaluation of Uncertainty of Phase Difference Determination in Presence of Bias

Saranovac¹,

Vučijak²

2016

Metrology and Measurement Systems

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show abstract

“…To resolve this issue, the authors in [Ihlenfeld et al, 2003] developed a method in which one time clock is adopted in the standard equipment, not only for the source (source of standard equipment, SSE), but also for the meter (meter of standard equipment, MSE). When a meter under test (meter under test, MUT) is calibrated, the SSE provides output signals for the MSE and MUT, resulting in synchronous sampling and appropriate calibration results.…”

Section: Algorithmmentioning

confidence: 99%

Measurement of Harmonic Voltage, Current, and Power at Industrial Frequency

Zuliang¹

2012

Modern Metrology Concerns

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“…With this combination, the JWS can generate stepwise approximated waveforms synchronized to an external source or clock signal and with amplitudes between 0 V and the maximum output voltage of the array being used-1 V or 10 V. The reliability of the programmability was demonstrated by a fully automated comparison between two 10 V arrays fabricated at PTB over 18 hours [10]. In this paper, the JWS provides a time dependent quantum voltage reference for differential measurements of an ac or dc voltage.…”

Section: Josephson Waveform Synthesizermentioning

confidence: 99%

“…Josephson Waveform Synthesizer Measurements of the ac-dc difference using TCs and sampling methods have been shown to agree to ±0.5 V/V between 10 Hz and 120 Hz for amplitudes in the region of 4 V [10]. As the ac-Quantum voltmeter [5,6] has shown, the uncertainty of sampling measurements can be further improved by using a time-dependent Josephson voltage for each of the samples.…”

Section: Introductionmentioning

confidence: 99%